I have a condo that has an electronic push button door lock. I'd like to reprogram the lock, as it seems everyone in town knows the current code. I can't find a make/brand anywhere on it. Any ideas on how to reprogram? Thanks.

Okay, took the whole assembly off the door. No reprogramming instructions but did find the manufacturer (Alarm Lock, Amityville NY). Checked their web site, what I have looks nothing like what they sell now. (My lock unit is at least 10 years old, probably more). I'll try calling them tomorrow and see if I can get anywhere. They do have lots of downloadable tech. info on their website, but it all seems to apply to their current products.